Timeline for Which finite nonabelian groups have all their quaternionic representations of degree one?

10 events

when toggle format	what		by	license	comment
Apr 13, 2017 at 12:57	history	edited	CommunityBot		replaced http://mathoverflow.net/ with https://mathoverflow.net/
Jun 7, 2014 at 14:47	vote	accept	Ken W. Smith
Jun 7, 2014 at 14:47	vote	accept	Ken W. Smith
Jun 7, 2014 at 14:47
Jun 7, 2014 at 14:46	vote	accept	Ken W. Smith
Jun 7, 2014 at 14:47
Jun 7, 2014 at 13:42	answer	added	Geoff Robinson		timeline score: 7
Jun 6, 2014 at 20:54	comment	added	Ben Webster♦		@QiaochuYuan That normal subgroup is too small. For example, for subgroups of $SU(2)$, only cyclic and quaternion groups satisfy this condition, not the dihedrals or symmetries of the platonic solids.
Jun 6, 2014 at 20:52	answer	added	Ben Webster♦		timeline score: 7
Jun 6, 2014 at 20:21	comment	added	Qiaochu Yuan		You can use the classification of finite subgroups of $\text{Sp}(1) \cong \text{SU}(2)$, right? The normal subgroup $K$ should be the intersection of the kernels of all homomorphisms to these finite subgroups. That's not very explicit, unfortunately.
Jun 6, 2014 at 17:41	history	edited	Ken W. Smith	CC BY-SA 3.0	added 277 characters in body
Jun 6, 2014 at 17:36	history	asked	Ken W. Smith	CC BY-SA 3.0